1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
# vim:ft=make
#
# Copyright 2021 Birte Kristina Friesel
#
# SPDX-License-Identifier: BSD-2-Clause
MCU = atmega2560
SERIAL_PORT ?= /dev/ttyUSB0
BAUD = 115200
ifdef CONFIG_arch_atmega2560_cpufreq
cpu_freq = ${CONFIG_arch_atmega2560_cpufreq}
endif
cpu_freq ?= 16000000
COMMON_FLAGS += -Werror=overflow
COMMON_FLAGS += -mmcu=${MCU} -DMULTIPASS_ARCH_atmega2560
COMMON_FLAGS += -DF_CPU=${cpu_freq}UL
ifeq (${stack_usage}, )
COMMON_FLAGS += -flto
endif
CC = avr-gcc
CXX = avr-g++
NM = avr-nm
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
ARCH_SHORTNAME = avr
ifdef CONFIG_aspectc
CXX = ag++ -r build/repo.acp -v 0 --c_compiler avr-g++ -p . --Xcompiler
endif
CXX_TARGETS += src/arch/atmega2560/arch.cc
CXX_TARGETS += src/arch/atmega2560/driver/gpio.cc
CXX_TARGETS += src/arch/atmega2560/driver/stdout.cc
# Command-line driver selection
ifneq ($(findstring softi2c,${drivers}), )
else ifneq ($(findstring i2c,${arch_drivers}), )
CONFIG_arch_atmega2560_driver_i2c = y
endif
ifneq ($(findstring adc,${arch_drivers}), )
CONFIG_arch_atmega2560_driver_adc = y
endif
ifneq ($(findstring spi,${arch_drivers}), )
CONFIG_arch_atmega2560_driver_spi = y
endif
ifneq ($(findstring stdin,${arch_drivers}), )
CONFIG_arch_atmega2560_driver_stdin = y
endif
ifneq ($(findstring timer,${arch_drivers}), )
CONFIG_arch_atmega2560_driver_timer = y
endif
ifneq ($(findstring counter,${arch_drivers}), )
CONFIG_arch_atmega2560_driver_counter = y
endif
ifneq ($(findstring neopixel,${arch_drivers}), )
CONFIG_arch_atmega2560_driver_neopixel = y
endif
ifeq (${timer_s}, 1)
CONFIG_arch_atmega2560_driver_uptime = y
endif
# Kconfig driver selection
ifdef CONFIG_arch_atmega2560_driver_i2c
CXX_TARGETS += src/arch/atmega2560/driver/i2c.cc
endif
ifdef CONFIG_arch_atmega2560_driver_adc
CXX_TARGETS += src/arch/atmega2560/driver/adc.cc
endif
ifdef CONFIG_arch_atmega2560_driver_dmx1
CXX_TARGETS += src/arch/atmega2560/driver/dmx1.cc
endif
ifdef CONFIG_arch_atmega2560_driver_dmx2
CXX_TARGETS += src/arch/atmega2560/driver/dmx2.cc
endif
ifdef CONFIG_arch_atmega2560_driver_dmx3
CXX_TARGETS += src/arch/atmega2560/driver/dmx3.cc
endif
ifdef CONFIG_arch_atmega2560_driver_spi
CXX_TARGETS += src/arch/atmega2560/driver/spi.cc
endif
ifdef CONFIG_arch_atmega2560_driver_stdout1
CXX_TARGETS += src/arch/atmega2560/driver/stdout1.cc
endif
ifdef CONFIG_arch_atmega2560_driver_stdout2
CXX_TARGETS += src/arch/atmega2560/driver/stdout2.cc
endif
ifdef CONFIG_arch_atmega2560_driver_stdout3
CXX_TARGETS += src/arch/atmega2560/driver/stdout3.cc
endif
ifdef CONFIG_arch_atmega2560_driver_stdin
CXX_TARGETS += src/arch/atmega2560/driver/stdin.cc
endif
ifdef CONFIG_arch_atmega2560_driver_stdin1
CXX_TARGETS += src/arch/atmega2560/driver/stdin1.cc
endif
ifdef CONFIG_arch_atmega2560_driver_stdin2
CXX_TARGETS += src/arch/atmega2560/driver/stdin2.cc
endif
ifdef CONFIG_arch_atmega2560_driver_stdin3
CXX_TARGETS += src/arch/atmega2560/driver/stdin3.cc
endif
ifdef CONFIG_arch_atmega2560_driver_timer
CXX_TARGETS += src/arch/atmega2560/driver/timer.cc
endif
ifdef CONFIG_arch_atmega2560_driver_counter
CXX_TARGETS += src/arch/atmega2560/driver/counter.cc
endif
ifdef CONFIG_arch_atmega2560_driver_neopixel
CXX_TARGETS += src/arch/atmega2560/driver/neopixel.cc
endif
ifdef CONFIG_arch_atmega2560_driver_uptime
COMMON_FLAGS += -DTIMER_S
CXX_TARGETS += src/arch/atmega2560/driver/uptime.cc
endif
ifeq (${cpu_freq}, 16000000)
uart_baud = 57600
else ifeq (${cpu_freq}, 8000000)
uart_baud = 38400
else ifeq (${cpu_freq}, 4000000)
uart_baud = 38400
else ifeq (${cpu_freq}, 2000000)
uart_baud = 19200
else ifeq (${cpu_freq}, 1000000)
uart_baud = 9600
else ifeq (${cpu_freq}, 500000)
uart_baud = 4800
else ifeq (${cpu_freq}, 250000)
uart_baud = 2400
else ifeq (${cpu_freq}, 125000)
uart_baud = 1200
else ifeq (${cpu_freq}, 62500)
uart_baud = 300
else
uart_baud = 9600
endif
COMMON_FLAGS += -DBAUD=${uart_baud}UL
OBJECTS = ${CXX_TARGETS:.cc=.o} ${C_TARGETS:.c=.o}
%.o : %.cc | include/config.h
${QUIET}${CXX} ${INCLUDES} ${COMMON_FLAGS} ${CXXFLAGS} -c -o $@ ${@:.o=.cc}
%.o : %.c | include/config.h
${QUIET}${CC} ${INCLUDES} ${COMMON_FLAGS} ${CFLAGS} -c -o $@ ${@:.o=.c}
build/system.elf: ${OBJECTS}
${QUIET}mkdir -p build
${QUIET}${CXX} ${COMMON_FLAGS} ${CXXFLAGS} -Wl,--gc-sections -o $@ ${OBJECTS}
${QUIET}avr-size --format=avr --mcu=${MCU} $@
${QUIET}test $$(avr-size --format=avr --mcu=${MCU} build/system.elf | fgrep Program | grep -o '[0-9.]*%' | cut -d . -f 1) -lt 100
build/system.hex: build/system.elf
${QUIET}${OBJCOPY} -O ihex ${@:.hex=.elf} $@
program: build/system.hex
${QUIET}avrdude -p ${MCU} -c wiring -P ${SERIAL_PORT} -b ${BAUD} -D -U flash:w:build/system.hex
arch_clean:
${QUIET}rm -f ${OBJECTS} build/system.hex
cat:
${QUIET}script/cat.py ${SERIAL_PORT} ${uart_baud} ${cpu_freq} 65536
monitor:
${QUIET}screen ${SERIAL_PORT} ${uart_baud}
size: build/system.elf
${QUIET}avr-size --format=avr --mcu=${MCU} build/system.elf | fgrep Program | perl -nE 'if (m{(\d+) bytes \(([0-9.]+%)}) { print("$$1;$$2;") }'
${QUIET}avr-size --format=avr --mcu=${MCU} build/system.elf | fgrep Data | perl -nE 'if (m{(\d+) bytes \(([0-9.]+%)}) { print("$$1;$$2;") }'
${QUIET}echo
arch_help:
@echo "atmega2560 specific flags:"
@echo " SERIAL_PORT = ${SERIAL_PORT}"
@echo " BAUD = ${BAUD} (only used for programming)"
arch_info:
@echo "CPU Freq: ${cpu_freq} Hz"
@echo "Timer Freq: ${timer_freq} Hz"
@echo "I2C Freq: ${i2c_freq} Hz"
@echo "Counter Overflow: 65536/255"
@echo "Monitor: ${SERIAL_PORT} ${uart_baud}"
attributes: build/system.elf
${QUIET}script/size.py avr-size text,data data,bss
nfpvalues: build/system.elf
${QUIET}script/nfpvalues.py avr-size text,data data,bss
.PHONY: arch_clean arch_help arch_info attributes cat monitor program size
|
